formulas

The formulas about the relative sliding ratio and the engagement trail of beeline-tooth conjugate inner-gearing pair are worked out on the basis of the gear meshing principle. Based on the formulas, the factors that may influence the relative sliding ratio of beeline-tooth conjugate inner-gearing pair are analyzed.

利用齿轮啮合原理推导了直线共轭内啮合齿轮副的啮合线方程和相对滑动系数的计算公式，研究了啮合过程中齿间相对滑动状态，综合分析了相对滑动系数的影响因素。

In order to verify the factuality of the old and new optimal formulas of the throwing angle in shot put, the marking of the optimal angle of release was applied to sample for verifying the old and the new formulas.

为了验证新、旧最佳投掷角度公式的真实性，运用最佳出手角度标志线，对新、旧公式进行了抽样检验。

General formulas of acid base titration curve, complexometric titration and general formulas of buffer solution of mixed acides index are introduced.

介绍了酸碱滴定曲线通用计算公式、络合滴定通用计算公式、氧化还原滴定通用计算公式、混合体系缓冲容量的通用算法以及这些公式在图形处理中的应用。